PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/22-01:27:50
G01     259.3          38.5                7.9 +/-    1.59      11.8 +/-    1.59  0.040 / 0.040
G03     316.4          35.5                5.4 +/-    1.17       8.5 +/-    1.17  0.030 / 0.040
G10     134.3          10.7                5.7 +/-    2.17      15.5 +/-    2.17  0.080 / 0.160
G11     241.9          16.6                5.9 +/-    2.60      14.0 +/-    2.60  0.130 / 0.220
G14     54.1           44.0                4.6 +/-    1.09       6.3 +/-    1.09  0.060 / 0.080
G22     311.2          58.7                6.2 +/-    0.79       7.1 +/-    0.79  0.070 / 0.110
G25     43.7           12.6                4.4 +/-    1.21      11.6 +/-    1.21  0.040 / 0.080
G26     147.3          30.0               10.5 +/-    1.21      18.4 +/-    1.21  0.050 / 0.100
G31     43.8           70.4                6.2 +/-    0.45       6.6 +/-    0.45  0.020 / 0.040
G32     70.1           29.5                4.6 +/-    1.00       8.2 +/-    1.00  0.040 / 0.050